Safety hypodermic syringe

Details Safety hypodermic syringe Safety hypodermic syringe

1990-03-20

1992-01-07

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

050786938

ABSTRACT:
According to the invention a hypodermic syringe includes a needle guard that prevents accidental puncture by the needle. The guard includes a fixed leaf that is attached to the needle hub and a hinged leaf that is hingedly attached to the fixed leaf. The hinged leaf is moveable from a shielding position wherein shield the needle tip to a retracted position wherein the needle tip is exposed for insertion. A spring biases the hinged leaf in the shielding position. A trigger attached to the hinged leaf is activated by the user to move the hinged leaf the retracted position.

REFERENCES:
patent: 4820277 (1989-04-01), Norelli
patent: 4976699 (1990-12-01), Gold

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